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The effect of diffusion direction on the permeation rate of hydrogen in palladium composite membranes

Liang, W and Hughes, R 2005, 'The effect of diffusion direction on the permeation rate of hydrogen in palladium composite membranes' , Chemical Engineering Journal, 112 (1-3) , pp. 81-86.

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Abstract

The experimentally measured hydrogen permeability of a composite Pd/porous stainless steel membrane was found to be influenced by the direction of permeation. For pure hydrogen, the direction from the stainless steel support to the metal film gave the higher hydrogen permeance. However, for a hydrogen/nitrogen mixture the opposite effect was obtained. Simulation results showed that while permeation from the support to the metal gave the expected Sieverts’ law value of the pressure exponent of 0.5, that from the metal to the support gave a higher value for this exponent of approximately 0.66.

Item Type: Article
Uncontrolled Keywords: Palladium membranes, hydrogen, permeation direction
Themes: Subjects / Themes > Q Science > QD Chemistry
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
Journal or Publication Title: Chemical Engineering Journal
Publisher: Elsevier
Refereed: Yes
ISSN: 13858947
Depositing User: H Kenna
Date Deposited: 03 Sep 2007 14:08
Last Modified: 20 Aug 2013 16:47
URI: http://usir.salford.ac.uk/id/eprint/373

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